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- PDB-1kfj: CRYSTAL STRUCTURE OF WILD-TYPE TRYPTOPHAN SYNTHASE COMPLEXED WITH... -

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Basic information

Entry
Database: PDB / ID: 1kfj
TitleCRYSTAL STRUCTURE OF WILD-TYPE TRYPTOPHAN SYNTHASE COMPLEXED WITH L-SERINE
Components
  • TRYPTOPHAN SYNTHASE ALPHA CHAIN
  • TRYPTOPHAN SYNTHASE BETA CHAIN
KeywordsLYASE / CARBON-OXYGEN LYASE / TRYPTOPHAN BIOSYNTHESIS / PYRIDOXAL PHOSPHATE
Function / homology
Function and homology information


tryptophan synthase / tryptophan synthase activity / L-tryptophan biosynthetic process / identical protein binding / cytoplasm / cytosol
Similarity search - Function
Tryptophan synthase, alpha chain / Tryptophan synthase, alpha chain, active site / Tryptophan synthase alpha chain / Tryptophan synthase alpha chain signature. / Tryptophan synthase, beta chain, conserved site / Tryptophan synthase, beta chain / Tryptophan synthase beta chain/beta chain-like / Tryptophan synthase beta chain pyridoxal-phosphate attachment site. / Rossmann fold - #1100 / Pyridoxal-phosphate dependent enzyme ...Tryptophan synthase, alpha chain / Tryptophan synthase, alpha chain, active site / Tryptophan synthase alpha chain / Tryptophan synthase alpha chain signature. / Tryptophan synthase, beta chain, conserved site / Tryptophan synthase, beta chain / Tryptophan synthase beta chain/beta chain-like / Tryptophan synthase beta chain pyridoxal-phosphate attachment site. / Rossmann fold - #1100 / Pyridoxal-phosphate dependent enzyme / Pyridoxal-phosphate dependent enzyme / Tryptophan synthase beta subunit-like PLP-dependent enzyme / Ribulose-phosphate binding barrel / Aldolase class I / Aldolase-type TIM barrel / TIM Barrel / Alpha-Beta Barrel / Rossmann fold / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
Chem-PLS / Tryptophan synthase alpha chain / Tryptophan synthase beta chain
Similarity search - Component
Biological speciesSalmonella typhimurium (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.8 Å
AuthorsKulik, V. / Weyand, M. / Seidel, R. / Niks, D. / Arac, D. / Dunn, M.F. / Schlichting, I.
CitationJournal: J.Mol.Biol. / Year: 2002
Title: On the role of alphaThr183 in the allosteric regulation and catalytic mechanism of tryptophan synthase.
Authors: Kulik, V. / Weyand, M. / Seidel, R. / Niks, D. / Arac, D. / Dunn, M.F. / Schlichting, I.
History
DepositionNov 21, 2001Deposition site: RCSB / Processing site: RCSB
Revision 1.0Oct 21, 2003Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Aug 16, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / pdbx_struct_conn_angle / struct_conn / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: TRYPTOPHAN SYNTHASE ALPHA CHAIN
B: TRYPTOPHAN SYNTHASE BETA CHAIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)71,9774
Polymers71,6182
Non-polymers3592
Water6,179343
1
A: TRYPTOPHAN SYNTHASE ALPHA CHAIN
B: TRYPTOPHAN SYNTHASE BETA CHAIN
hetero molecules

A: TRYPTOPHAN SYNTHASE ALPHA CHAIN
B: TRYPTOPHAN SYNTHASE BETA CHAIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)143,9548
Polymers143,2354
Non-polymers7184
Water724
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_655-x+1,y,-z1
Unit cell
Length a, b, c (Å)183.230, 59.679, 67.462
Angle α, β, γ (deg.)90.00, 94.65, 90.00
Int Tables number5
Space group name H-MC121

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Components

#1: Protein TRYPTOPHAN SYNTHASE ALPHA CHAIN / TRPA


Mass: 28698.797 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Salmonella typhimurium (bacteria) / Gene: TRPA/TRPB / Plasmid: PSTB7 / Production host: Escherichia coli (E. coli) / Strain (production host): CB149 / References: UniProt: P00929, tryptophan synthase
#2: Protein TRYPTOPHAN SYNTHASE BETA CHAIN


Mass: 42918.879 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Salmonella typhimurium (bacteria) / Gene: TRPA/TRPB / Plasmid: PSTB7 / Production host: Escherichia coli (E. coli) / Strain (production host): CB149 / References: UniProt: P0A2K1, tryptophan synthase
#3: Chemical ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Na
#4: Chemical ChemComp-PLS / [3-HYDROXY-2-METHYL-5-PHOSPHONOOXYMETHYL-PYRIDIN-4-YLMETHYL]-SERINE / PYRIDOXYL-SERINE-5-MONOPHOSPHATE


Mass: 336.235 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C11H17N2O8P
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 343 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.57 Å3/Da / Density % sol: 52.05 %
Crystal growpH: 7.8 / Details: PEG 8000, pH 7.80

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: ID14-1 / Wavelength: 0.934
DetectorType: MARRESEARCH / Detector: CCD / Date: Feb 3, 2001
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.934 Å / Relative weight: 1
ReflectionResolution: 1.8→35 Å / Num. obs: 64848 / % possible obs: 96 % / Observed criterion σ(I): -3 / Redundancy: 2.6 % / Rmerge(I) obs: 0.07 / Net I/σ(I): 10.1
Reflection shellResolution: 1.8→1.9 Å / Redundancy: 2.1 % / Rmerge(I) obs: 0.337 / Mean I/σ(I) obs: 2.86 / % possible all: 86.8

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Processing

Software
NameClassification
XDSdata scaling
XSCALEdata scaling
CNSrefinement
REFMACrefinement
XDSdata reduction
CNSphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1QOP

1qop


Resolution: 1.8→20 Å / Cross valid method: THROUGHOUT / σ(F): 0
RfactorNum. reflection% reflectionSelection details
Rfree0.211 3266 5 %RANDOM
Rwork0.174 ---
obs0.176 61544 96.1 %-
Displacement parametersBiso mean: 32.86 Å2
Baniso -1Baniso -2Baniso -3
1--1.43 Å20 Å20.05 Å2
2--2.13 Å20 Å2
3----0.7 Å2
Refinement stepCycle: LAST / Resolution: 1.8→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4893 0 23 343 5259
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONp_bond_d0.0290.021
X-RAY DIFFRACTIONp_angle_d
X-RAY DIFFRACTIONp_angle_deg
X-RAY DIFFRACTIONp_planar_d
X-RAY DIFFRACTIONp_hb_or_metal_coord
X-RAY DIFFRACTIONp_mcbond_it2.3341.5
X-RAY DIFFRACTIONp_mcangle_it3.542
X-RAY DIFFRACTIONp_scbond_it5.4443
X-RAY DIFFRACTIONp_scangle_it8.5154.5
X-RAY DIFFRACTIONp_plane_restr
X-RAY DIFFRACTIONp_chiral_restr0.2480.2
X-RAY DIFFRACTIONp_singtor_nbd
X-RAY DIFFRACTIONp_multtor_nbd
X-RAY DIFFRACTIONp_xhyhbond_nbd
X-RAY DIFFRACTIONp_xyhbond_nbd0.1530.5
X-RAY DIFFRACTIONp_planar_tor
X-RAY DIFFRACTIONp_staggered_tor
X-RAY DIFFRACTIONp_orthonormal_tor
X-RAY DIFFRACTIONp_transverse_tor
X-RAY DIFFRACTIONp_special_tor

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